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A Study on Numerical Analysis of Wheel-rail Contact Points  

Kang, Ju-Seok (한국철도대학 철도차량기계과)
Publication Information
Journal of the Korean Society for Railway / v.12, no.2, 2009 , pp. 236-242 More about this Journal
Abstract
This paper presents a numerical analysis method to determine flange contact at variable wheel positions. The shapes of the wheel and rail surface functions with surface parameters. The Newton-Rhapson method for wheel-rail contact can provide fast solutions, but may not yield true values at optimization process with the condition that minimum distance is zero can time-consuming. A compound method, combining the Newton-Rhapson methods the optimization process method is proposed to provide exact solutions efficiently.
Keywords
wheel-rail contact; 3-dimensional surface function; kinematic constraint equation; optimization process;
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